Sebastien Barnoud created HBASE-22634:
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Summary: Improve performance of BufferedMutator
Key: HBASE-22634
URL: https://issues.apache.org/jira/browse/HBASE-22634
Project: HBase
Issue Type: Improvement
Components: Client
Affects Versions: 2.1.5
Environment: HDP 2.6.5
Linux RedHat
Reporter: Sebastien Barnoud
The default ThreadPoolExecutor uses a default size of 1 (property
hbase.htable.threads.max). When using a size > 1, we still encountered poor
performance and exception while submitting to pool (pool exceed its capacity).
This patch propose a fix on different issues encountered when the pool size is
> 1:
* thread safety issue
* concurrent cleanup by Netty and the "legacy" code
* errors in the backpressure
* Netty memory leak
And propose a BufferedMutatorThreadPoolExecutor which:
* uses hbase.client.max.total.tasks as the default size (instead of 1)
* some usefull metrics
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